From d268638cd5b74f60d73f98b0658be2e622bcb94b Mon Sep 17 00:00:00 2001 From: Janos Dobronszki Date: Fri, 21 May 2021 14:25:51 +0100 Subject: [PATCH] Thumbnail service, image upload fixes (#119) --- image/handler/image.go | 15 +- thumbnail/.gitignore | 2 + thumbnail/Dockerfile | 3 + thumbnail/Makefile | 22 +++ thumbnail/README.md | 23 +++ thumbnail/docker-image/Dockerfile | 42 +++++ thumbnail/docker-image/local.conf | 31 ++++ thumbnail/generate.go | 2 + thumbnail/handler/thumbnail.go | 63 +++++++ thumbnail/main.go | 26 +++ thumbnail/micro.mu | 1 + thumbnail/proto/thumbnail.pb.go | 236 ++++++++++++++++++++++++++ thumbnail/proto/thumbnail.pb.micro.go | 93 ++++++++++ thumbnail/proto/thumbnail.proto | 22 +++ 14 files changed, 579 insertions(+), 2 deletions(-) create mode 100644 thumbnail/.gitignore create mode 100644 thumbnail/Dockerfile create mode 100644 thumbnail/Makefile create mode 100644 thumbnail/README.md create mode 100644 thumbnail/docker-image/Dockerfile create mode 100644 thumbnail/docker-image/local.conf create mode 100644 thumbnail/generate.go create mode 100644 thumbnail/handler/thumbnail.go create mode 100644 thumbnail/main.go create mode 100644 thumbnail/micro.mu create mode 100644 thumbnail/proto/thumbnail.pb.go create mode 100644 thumbnail/proto/thumbnail.pb.micro.go create mode 100644 thumbnail/proto/thumbnail.proto diff --git a/image/handler/image.go b/image/handler/image.go index 7f9eff1..6df8411 100644 --- a/image/handler/image.go +++ b/image/handler/image.go @@ -47,8 +47,9 @@ func (e *Image) Upload(ctx context.Context, req *img.UploadRequest, rsp *img.Upl } var srcImage image.Image var err error + var ext string if len(req.Base64) > 0 { - srcImage, _, err = base64ToImage(req.Base64) + srcImage, ext, err = base64ToImage(req.Base64) if err != nil { return err } @@ -68,8 +69,18 @@ func (e *Image) Upload(ctx context.Context, req *img.UploadRequest, rsp *img.Upl } defer response.Body.Close() } + buf := new(bytes.Buffer) - err = jpeg.Encode(buf, srcImage, nil) + + switch { + case strings.HasSuffix(req.ImageID, ".png") || ext == "png": + err = png.Encode(buf, srcImage) + case strings.HasSuffix(req.ImageID, ".jpg") || strings.HasSuffix(req.Url, ".jpeg") || ext == "jpg": + err = jpeg.Encode(buf, srcImage, nil) + default: + return errors.New("could not determine extension") + } + if err != nil { return err } diff --git a/thumbnail/.gitignore b/thumbnail/.gitignore new file mode 100644 index 0000000..d4b0045 --- /dev/null +++ b/thumbnail/.gitignore @@ -0,0 +1,2 @@ + +thumbnail diff --git a/thumbnail/Dockerfile b/thumbnail/Dockerfile new file mode 100644 index 0000000..57db43d --- /dev/null +++ b/thumbnail/Dockerfile @@ -0,0 +1,3 @@ +FROM alpine +ADD thumbnail /thumbnail +ENTRYPOINT [ "/thumbnail" ] diff --git a/thumbnail/Makefile b/thumbnail/Makefile new file mode 100644 index 0000000..b5ee02d --- /dev/null +++ b/thumbnail/Makefile @@ -0,0 +1,22 @@ + +GOPATH:=$(shell go env GOPATH) +.PHONY: init +init: + go get -u github.com/golang/protobuf/proto + go get -u github.com/golang/protobuf/protoc-gen-go + go get github.com/micro/micro/v3/cmd/protoc-gen-micro +.PHONY: proto +proto: + protoc --proto_path=. --micro_out=. --go_out=:. proto/thumbnail.proto + +.PHONY: build +build: + go build -o thumbnail *.go + +.PHONY: test +test: + go test -v ./... -cover + +.PHONY: docker +docker: + docker build . -t thumbnail:latest diff --git a/thumbnail/README.md b/thumbnail/README.md new file mode 100644 index 0000000..d87a315 --- /dev/null +++ b/thumbnail/README.md @@ -0,0 +1,23 @@ +# Thumbnail Service + +This is the Thumbnail service + +Generated with + +``` +micro new thumbnail +``` + +## Usage + +Generate the proto code + +``` +make proto +``` + +Run the service + +``` +micro run . +``` \ No newline at end of file diff --git a/thumbnail/docker-image/Dockerfile b/thumbnail/docker-image/Dockerfile new file mode 100644 index 0000000..65ec074 --- /dev/null +++ b/thumbnail/docker-image/Dockerfile @@ -0,0 +1,42 @@ +FROM micro/cells:v3 as builder + +# +# headless chrome +# taken from https://github.com/Zenika/alpine-chrome/blob/master/Dockerfile +# + +# Installs latest Chromium package. +RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/main" > /etc/apk/repositories \ + && echo "http://dl-cdn.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories \ + && echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories \ + && echo "http://dl-cdn.alpinelinux.org/alpine/v3.12/main" >> /etc/apk/repositories \ + && apk upgrade -U -a \ + && apk add \ + libstdc++ \ + chromium \ + harfbuzz \ + nss \ + freetype \ + ttf-freefont \ + font-noto-emoji \ + wqy-zenhei \ + && rm -rf /var/cache/* \ + && mkdir /var/cache/apk + +COPY local.conf /etc/fonts/local.conf + +# Add Chrome as a user +RUN mkdir -p /usr/src/app \ + && adduser -D chrome \ + && chown -R chrome:chrome /usr/src/app +# Run Chrome as non-privileged +#USER chrome +#WORKDIR /usr/src/app + +ENV CHROME_BIN=/usr/bin/chromium-browser \ + CHROME_PATH=/usr/lib/chromium/ + +RUN apk add libstdc++@edge +# +# / headless chrome +# diff --git a/thumbnail/docker-image/local.conf b/thumbnail/docker-image/local.conf new file mode 100644 index 0000000..ed6c08b --- /dev/null +++ b/thumbnail/docker-image/local.conf @@ -0,0 +1,31 @@ + + + + + + sans-serif + + Main sans-serif font name goes here + Noto Color Emoji + Noto Emoji + + + + + serif + + Main serif font name goes here + Noto Color Emoji + Noto Emoji + + + + + monospace + + Main monospace font name goes here + Noto Color Emoji + Noto Emoji + + + \ No newline at end of file diff --git a/thumbnail/generate.go b/thumbnail/generate.go new file mode 100644 index 0000000..96f431a --- /dev/null +++ b/thumbnail/generate.go @@ -0,0 +1,2 @@ +package main +//go:generate make proto diff --git a/thumbnail/handler/thumbnail.go b/thumbnail/handler/thumbnail.go new file mode 100644 index 0000000..df1e5d1 --- /dev/null +++ b/thumbnail/handler/thumbnail.go @@ -0,0 +1,63 @@ +package handler + +import ( + "context" + "encoding/base64" + "fmt" + "io/ioutil" + "os/exec" + "path/filepath" + "time" + + "github.com/google/uuid" + "github.com/micro/micro/v3/service/client" + "github.com/micro/micro/v3/service/logger" + iproto "github.com/micro/services/image/proto" + thumbnail "github.com/micro/services/thumbnail/proto" +) + +const screenshotPath = "/usr/src/app" + +type Thumbnail struct { + imageService iproto.ImageService +} + +func NewThumbnail(imageService iproto.ImageService) *Thumbnail { + return &Thumbnail{ + imageService: imageService, + } +} + +func (e *Thumbnail) Screenshot(ctx context.Context, req *thumbnail.ScreenshotRequest, rsp *thumbnail.ScreenshotResponse) error { + imageName := uuid.New().String() + ".png" + imagePath := filepath.Join(screenshotPath, imageName) + width := "800" + height := "600" + if req.Width != 0 { + width = fmt.Sprintf("%v", req.Width) + } + if req.Height != 0 { + height = fmt.Sprintf("%v", req.Height) + } + + outp, err := exec.Command("/usr/bin/chromium-browser", "--headless", "--window-size="+width+","+height, "--no-sandbox", "--screenshot="+imagePath, "--hide-scrollbars", req.Url).CombinedOutput() + logger.Info(string(outp)) + if err != nil { + logger.Error(string(outp) + err.Error()) + return err + } + file, err := ioutil.ReadFile(imagePath) + if err != nil { + return err + } + base := base64.StdEncoding.EncodeToString(file) + resp, err := e.imageService.Upload(ctx, &iproto.UploadRequest{ + Base64: "data:image/png;base64, " + base, + ImageID: imageName, + }, client.WithDialTimeout(20*time.Second), client.WithRequestTimeout(20*time.Second)) + if err != nil { + return err + } + rsp.ImageURL = resp.Url + return nil +} diff --git a/thumbnail/main.go b/thumbnail/main.go new file mode 100644 index 0000000..e07ac1f --- /dev/null +++ b/thumbnail/main.go @@ -0,0 +1,26 @@ +package main + +import ( + iproto "github.com/micro/services/image/proto" + "github.com/micro/services/thumbnail/handler" + pb "github.com/micro/services/thumbnail/proto" + + "github.com/micro/micro/v3/service" + "github.com/micro/micro/v3/service/logger" +) + +func main() { + // Create service + srv := service.New( + service.Name("thumbnail"), + service.Version("latest"), + ) + + // Register handler + pb.RegisterThumbnailHandler(srv.Server(), handler.NewThumbnail(iproto.NewImageService("image", srv.Client()))) + + // Run service + if err := srv.Run(); err != nil { + logger.Fatal(err) + } +} diff --git a/thumbnail/micro.mu b/thumbnail/micro.mu new file mode 100644 index 0000000..1f9becb --- /dev/null +++ b/thumbnail/micro.mu @@ -0,0 +1 @@ +service thumbnail diff --git a/thumbnail/proto/thumbnail.pb.go b/thumbnail/proto/thumbnail.pb.go new file mode 100644 index 0000000..5f1f338 --- /dev/null +++ b/thumbnail/proto/thumbnail.pb.go @@ -0,0 +1,236 @@ +// Code generated by protoc-gen-go. DO NOT EDIT. +// versions: +// protoc-gen-go v1.26.0 +// protoc v3.6.1 +// source: proto/thumbnail.proto + +package thumbnail + +import ( + protoreflect "google.golang.org/protobuf/reflect/protoreflect" + protoimpl "google.golang.org/protobuf/runtime/protoimpl" + reflect "reflect" + sync "sync" +) + +const ( + // Verify that this generated code is sufficiently up-to-date. + _ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion) + // Verify that runtime/protoimpl is sufficiently up-to-date. + _ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20) +) + +type ScreenshotRequest struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + Url string `protobuf:"bytes,1,opt,name=url,proto3" json:"url,omitempty"` + // width of the browser window. optional + Width int32 `protobuf:"varint,2,opt,name=width,proto3" json:"width,omitempty"` + // height of the browser window, optional + Height int32 `protobuf:"varint,3,opt,name=height,proto3" json:"height,omitempty"` +} + +func (x *ScreenshotRequest) Reset() { + *x = ScreenshotRequest{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_thumbnail_proto_msgTypes[0] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *ScreenshotRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*ScreenshotRequest) ProtoMessage() {} + +func (x *ScreenshotRequest) ProtoReflect() protoreflect.Message { + mi := &file_proto_thumbnail_proto_msgTypes[0] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use ScreenshotRequest.ProtoReflect.Descriptor instead. +func (*ScreenshotRequest) Descriptor() ([]byte, []int) { + return file_proto_thumbnail_proto_rawDescGZIP(), []int{0} +} + +func (x *ScreenshotRequest) GetUrl() string { + if x != nil { + return x.Url + } + return "" +} + +func (x *ScreenshotRequest) GetWidth() int32 { + if x != nil { + return x.Width + } + return 0 +} + +func (x *ScreenshotRequest) GetHeight() int32 { + if x != nil { + return x.Height + } + return 0 +} + +type ScreenshotResponse struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + ImageURL string `protobuf:"bytes,1,opt,name=imageURL,proto3" json:"imageURL,omitempty"` +} + +func (x *ScreenshotResponse) Reset() { + *x = ScreenshotResponse{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_thumbnail_proto_msgTypes[1] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *ScreenshotResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*ScreenshotResponse) ProtoMessage() {} + +func (x *ScreenshotResponse) ProtoReflect() protoreflect.Message { + mi := &file_proto_thumbnail_proto_msgTypes[1] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use ScreenshotResponse.ProtoReflect.Descriptor instead. +func (*ScreenshotResponse) Descriptor() ([]byte, []int) { + return file_proto_thumbnail_proto_rawDescGZIP(), []int{1} +} + +func (x *ScreenshotResponse) GetImageURL() string { + if x != nil { + return x.ImageURL + } + return "" +} + +var File_proto_thumbnail_proto protoreflect.FileDescriptor + +var file_proto_thumbnail_proto_rawDesc = []byte{ + 0x0a, 0x15, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x74, 0x68, 0x75, 0x6d, 0x62, 0x6e, 0x61, 0x69, + 0x6c, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x09, 0x74, 0x68, 0x75, 0x6d, 0x62, 0x6e, 0x61, + 0x69, 0x6c, 0x22, 0x53, 0x0a, 0x11, 0x53, 0x63, 0x72, 0x65, 0x65, 0x6e, 0x73, 0x68, 0x6f, 0x74, + 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x10, 0x0a, 0x03, 0x75, 0x72, 0x6c, 0x18, 0x01, + 0x20, 0x01, 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make([]protoimpl.MessageInfo, 2) +var file_proto_thumbnail_proto_goTypes = []interface{}{ + (*ScreenshotRequest)(nil), // 0: thumbnail.ScreenshotRequest + (*ScreenshotResponse)(nil), // 1: thumbnail.ScreenshotResponse +} +var file_proto_thumbnail_proto_depIdxs = []int32{ + 0, // 0: thumbnail.Thumbnail.Screenshot:input_type -> thumbnail.ScreenshotRequest + 1, // 1: thumbnail.Thumbnail.Screenshot:output_type -> thumbnail.ScreenshotResponse + 1, // [1:2] is the sub-list for method output_type + 0, // [0:1] is the sub-list for method input_type + 0, // [0:0] is the sub-list for extension type_name + 0, // [0:0] is the sub-list for extension extendee + 0, // [0:0] is the sub-list for field type_name +} + +func init() { file_proto_thumbnail_proto_init() } +func file_proto_thumbnail_proto_init() { + if File_proto_thumbnail_proto != nil { + return + } + if !protoimpl.UnsafeEnabled { + file_proto_thumbnail_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*ScreenshotRequest); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_proto_thumbnail_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*ScreenshotResponse); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + } + type x struct{} + out := protoimpl.TypeBuilder{ + File: protoimpl.DescBuilder{ + GoPackagePath: reflect.TypeOf(x{}).PkgPath(), + RawDescriptor: file_proto_thumbnail_proto_rawDesc, + NumEnums: 0, + NumMessages: 2, + NumExtensions: 0, + NumServices: 1, + }, + GoTypes: file_proto_thumbnail_proto_goTypes, + DependencyIndexes: file_proto_thumbnail_proto_depIdxs, + MessageInfos: file_proto_thumbnail_proto_msgTypes, + }.Build() + File_proto_thumbnail_proto = out.File + file_proto_thumbnail_proto_rawDesc = nil + file_proto_thumbnail_proto_goTypes = nil + file_proto_thumbnail_proto_depIdxs = nil +} diff --git a/thumbnail/proto/thumbnail.pb.micro.go b/thumbnail/proto/thumbnail.pb.micro.go new file mode 100644 index 0000000..a38d509 --- /dev/null +++ b/thumbnail/proto/thumbnail.pb.micro.go @@ -0,0 +1,93 @@ +// Code generated by protoc-gen-micro. DO NOT EDIT. +// source: proto/thumbnail.proto + +package thumbnail + +import ( + fmt "fmt" + proto "github.com/golang/protobuf/proto" + math "math" +) + +import ( + context "context" + api "github.com/micro/micro/v3/service/api" + client "github.com/micro/micro/v3/service/client" + server "github.com/micro/micro/v3/service/server" +) + +// Reference imports to suppress errors if they are not otherwise used. +var _ = proto.Marshal +var _ = fmt.Errorf +var _ = math.Inf + +// This is a compile-time assertion to ensure that this generated file +// is compatible with the proto package it is being compiled against. +// A compilation error at this line likely means your copy of the +// proto package needs to be updated. +const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package + +// Reference imports to suppress errors if they are not otherwise used. +var _ api.Endpoint +var _ context.Context +var _ client.Option +var _ server.Option + +// Api Endpoints for Thumbnail service + +func NewThumbnailEndpoints() []*api.Endpoint { + return []*api.Endpoint{} +} + +// Client API for Thumbnail service + +type ThumbnailService interface { + Screenshot(ctx context.Context, in *ScreenshotRequest, opts ...client.CallOption) (*ScreenshotResponse, error) +} + +type thumbnailService struct { + c client.Client + name string +} + +func NewThumbnailService(name string, c client.Client) ThumbnailService { + return &thumbnailService{ + c: c, + name: name, + } +} + +func (c *thumbnailService) Screenshot(ctx context.Context, in *ScreenshotRequest, opts ...client.CallOption) (*ScreenshotResponse, error) { + req := c.c.NewRequest(c.name, "Thumbnail.Screenshot", in) + out := new(ScreenshotResponse) + err := c.c.Call(ctx, req, out, opts...) + if err != nil { + return nil, err + } + return out, nil +} + +// Server API for Thumbnail service + +type ThumbnailHandler interface { + Screenshot(context.Context, *ScreenshotRequest, *ScreenshotResponse) error +} + +func RegisterThumbnailHandler(s server.Server, hdlr ThumbnailHandler, opts ...server.HandlerOption) error { + type thumbnail interface { + Screenshot(ctx context.Context, in *ScreenshotRequest, out *ScreenshotResponse) error + } + type Thumbnail struct { + thumbnail + } + h := &thumbnailHandler{hdlr} + return s.Handle(s.NewHandler(&Thumbnail{h}, opts...)) +} + +type thumbnailHandler struct { + ThumbnailHandler +} + +func (h *thumbnailHandler) Screenshot(ctx context.Context, in *ScreenshotRequest, out *ScreenshotResponse) error { + return h.ThumbnailHandler.Screenshot(ctx, in, out) +} diff --git a/thumbnail/proto/thumbnail.proto b/thumbnail/proto/thumbnail.proto new file mode 100644 index 0000000..3571ffb --- /dev/null +++ b/thumbnail/proto/thumbnail.proto @@ -0,0 +1,22 @@ +syntax = "proto3"; + +package thumbnail; + +option go_package = "github.com/micro/services/url/proto;thumbnail"; + +service Thumbnail { + rpc Screenshot(ScreenshotRequest) returns (ScreenshotResponse) {} + +} + +message ScreenshotRequest { + string url = 1; + // width of the browser window. optional + int32 width = 2; + // height of the browser window, optional + int32 height = 3; +} + +message ScreenshotResponse { + string imageURL = 1; +}